CJCP     2023 25 (2):  153-158    ISSN: 1008-8830  CN: 43-1301/R Association between early-life factors and pubertal timing in girls ZENG Ding, LIANG Jian-Ping, ZHENG Yi-Jin, DENG Na-Li, YANG Lun, LU Shuang, YANG Yi, LIU Li School of Public Health, Guangdong Pharmaceutical University, Guangzhou 510310, China Received: null  Revised: null  Online: null Supporting info